EverSolo C10 High-Precision Master Clock

The more sophisticated a Hi-Fi digital audio system becomes, the more it relies on a stable timing reference.
Engineered for exceptional stability and accuracy, the Eversolo C10 High-Precision Master Clock provides a reliable timing reference for high-performance HiFi systems. By minimizing timing errors, C10 helps preserve the integrity of the audio signal, bringing greater clarity, a more expansive soundstage, and a natural sense of musical coherence.

How a crystal is cut defines how stable it remains through temperature changes, internal stress, and years of operation.The custom OCXO developed for C10 uses an SC-cut crystal. Its sophisticated, doubly rotated geometry makes the crystal less susceptible to temperature variation and internal stress. More demanding to manufacture, it provides a stronger foundation for frequency stability while supporting lower phase noise and improved long-term aging performance. Precision oven control keeps the crystal at a stable operating temperature, minimizing the effects of environmental change on clock performance. Precision, held steady through every synchronization.

One Reference Every Clock Aligned

Combining an SC-cut quartz crystal with precision temperature control and a low-noise oscillator design, C10’s high-stability OCXO suppresses temperature-induced frequency drift, establishing a stable, clean 10 MHz reference.

Eversolo’s proprietary Reference Timing Engine (RTE) turns the stable 10 MHz reference into system-wide timing order. Working with 1PPS external time synchronization, it brings the entire system onto a shared time scale.

-115 dBc/Hz@1Hz Ultra-Low Phase Noise
Precision timing goes beyond frequency accuracy. Every cycle must arrive with exceptional consistency. Phase noise reflects tiny timing variations between cycles. The lower it is, the cleaner the signal and the more stable the clock over short intervals. Controlling these variations close to the carrier is especially demanding. From the oscillator and thermal control to the power supply and output stage, every element of the C10 is engineered to achieve ≤ −115 dBc/Hz at a 1 Hz offset.

For the First Time Precision Has a Visible Curve
C10 brings the clock’s operating state to the screen. What once happened unseen inside the hardware is now shown on the 8.8-inch IPS touchscreen. From warm-up to stable output, temperature, operating status, and 1PPS calibration are presented in real time. No complex parameters. No guesswork. Precision is no longer only measured. It is made visible.

1PPS Reference Timing Input Precision Kept in Sync
Even precision clocks can drift over time. With its GNSS 1PPS reference input, C10 uses the 1PPS timing pulse provided by global navigation satellite systems as a long-term reference, automatically recalibrating its internal time base to maintain accurate timing, second by second.

*Every C10 is factory-calibrated for 1PPS timing. Calibration service is available through authorized dealers.

Unique Clock Identity Precision with Its Own Signature
Each C10 clock module carries a unique serial code. It gives every clock core its own identity, linking it to its production, testing, and calibration records. Precision is not just a shared standard. It is managed individually, in every C10.

One Source, Four Outputs Independent Buffering
C10 features four BNC clock outputs, all driven by the same high-precision clock source, giving multiple digital audio devices a unified reference for synchronization. Each output has its own dedicated buffer circuit to help isolate load changes and interference. Use one output or several at once, with stable, consistent clocking for streamers, DACs, and CD transports.

Stable Power Architecture Powering Precision, Continuously
The C10’s toroidal transformer minimizes magnetic leakage and power-line noise, delivering clean, stable power to the clock module and control circuitry.

Precision Layout, Dual Isolation Every Critical Circuit, Precisely Placed
Inside C10, the power supply, clock, calibration, and output sections are arranged as independent modules. Electrical isolation and physical separation, combined with optimized shielding, help minimize interference between circuits and provide a clean, stable operating environment for the clock core.

Form Distilled. Full Visibility.
C10 is crafted from aerospace-grade aluminum alloy, balancing strength with thermal performance.
Its 8.8-inch IPS touchscreen is integrated with quiet precision into the enclosure. Essential status and control appear exactly where they belong: at your fingertips.

A Flagship Source System
The C10 Master Clock can connect to streamers, CD transports, DACs, and other components with external clock inputs, bringing precise timing to an existing HiFi system. From digital output to clock synchronization, decoding, and conversion, every stage follows the same precise timing reference, bringing greater coherence to the entire signal chain.